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Pomponne
Pomponne
Commune
	The town hall of Pomponne
	Coat of arms
	Location of Pomponne
	Pomponne Pomponne
	Coordinates: 48°53′04″N 2°41′21″E / 48.8844°N 2.6892°E
Country	France
Region	Île-de-France
Department	Seine-et-Marne
Arrondissement	Torcy
Canton	Lagny-sur-Marne
Intercommunality	Marne et Gondoire
Government
• Mayor (2020–2026)	Arnaud Brunet
Area 1	7.17 km2 (2.77 sq mi)
Population (2022)	4,149
• Density	580/km2 (1,500/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
INSEE/Postal code	77372 /77400
Elevation	37–120 m (121–394 ft)
	1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Pomponne (French pronunciation: [pɔ̃pɔn] ^ⓘ) is a commune in the Seine-et-Marne department in the Île-de-France region in north-central France.

Population

Historical population
Year	Pop.	±% p.a.
1968	1,304	—
1975	1,397	+0.99%
1982	2,826	+10.59%
1990	3,044	+0.93%
1999	3,256	+0.75%
2007	3,336	+0.30%
2012	3,579	+1.42%
2017	4,034	+2.42%
Source: INSEE^[3]

The inhabitants are called Pomponnais in French.

History

On 23 December 1933, the second worst train accident in France occurred in Pomponne with a rear-end collision of Paris-Nancy express and Paris-Strasbourg fast train. 230 people were killed and 300 injured aboard the Nancy express as its 7 wood coaches were smashed. The driver of the Strasbourg train had passed a signal at danger in darkness and fog, but the "Crocodile" acoustic warning system was found to have failed because the contacts had iced over.